模板和样式

<template>
  <div class="XueXi_Hooks">
    <img v-for="(dog, index) in dog1List" :src="dog" :key="index" />
    <button @click="addDog1">点我添加狗1</button>
    <hr />
    <img v-for="(dog, index) in dog2List" :src="dog" :key="index" />
    <button @click="addDog2">点我添加狗2</button>
    <hr />
  <h3>当前求和为：{{ sum }}<br />放大10倍为：{{ BigSum }}</h3>
  <button @click="add">点我+1</button>
  </div>
 
</template>
<script setup lang="ts" name="XueXi_Hooks">
import Hooks_Dog1 from './Hooks/Hooks_Dog1'
import Hooks_Dog2 from './Hooks/Hooks_Dog2'
import Hooks_sun from './Hooks/Hooks_sun'
const { sum, add, BigSum } = Hooks_sun()
const { dog1List, addDog1 } = Hooks_Dog1()
const { dog2List, addDog2 } = Hooks_Dog2()
/* 引入 
import { ref, reactive } from 'vue'
import axios from 'axios' */
/* 数据 
const sum = ref(0)
// https://dog.ceo/api/breed/pembroke/images/random
let dogList1 = reactive(['https://images.dog.ceo/breeds/pembroke/n02113023_6161.jpg'])
let dogList2 = reactive(['https://images.dog.ceo/breeds/pembroke/n02113023_1916.jpg'])
*/
/* 方法 
function add() {
  sum.value += 1
}
function addDog1() {
  // axios.get('https://dog.ceo/api/breed/pembroke/images/random')
  //  .then(res => {
  //     dogList1.push(res.data.message)
  //   })
  dogList1.push('https://images.dog.ceo/breeds/pembroke/n02113023_6161.jpg')
}
 async function addDog2() {
try{
    let result = await axios.get('https://dog.ceo/api/breed/pembroke/images/random')
// console.log(result.data.message)
 dogList2.push(result.data.message)
 }catch(err){
    alert(err)
 }
} */
</script>
<style scoped>
.XueXi_Hooks {
  text-align: center;
  color: #18ff03;
  text-shadow: 1px 1px 2px #000;
 font-weight: bold;
}
button {
  background-color: #062403;
  color: #18ff03;
  text-shadow: 1px 1px 2px #000;
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  margin: 10px;
}
img {
  height: 200px;
  margin: 10px;
  border-radius: 5px;
}
</style>

拆分点击添加小狗的脚本第一种写法：

/* 引入 */
import { reactive } from 'vue'
import axios from 'axios'
export default function () {
/* 数据 */
const dog1List = reactive(['https://images.dog.ceo/breeds/pembroke/n02113023_6161.jpg'])
/* 方法 */
function addDog1() {
  axios.get('https://dog.ceo/api/breed/pembroke/images/random')
   .then(res => {
      dog1List.push(res.data.message)
    })
  // dogList1.push('https://images.dog.ceo/breeds/pembroke/n02113023_6161.jpg')
}
return {
  dog1List,
  addDog1
}
}

拆分点击添加小狗的脚本第二种写法：

/* 引入 */
import { reactive,onMounted } from 'vue'
import axios from 'axios'
export default function () {
  /* 数据 */
 // eslint-disable-next-line prefer-const
  let dog2List = reactive(['https://images.dog.ceo/breeds/pembroke/n02113023_1916.jpg'])
 /* 方法 */
 // 获取狗狗列表
  async function addDog2() {
   try {
      // eslint-disable-next-line prefer-const
      let result = await axios.get('https://dog.ceo/api/breed/pembroke/images/random')
      // console.log(result.data.message)
      dog2List.push(result.data.message)
      console.log(dog2List)
    } catch (err) {
      alert(err)
    }
  }
  /* 生命周期 */
  onMounted(() => {
    addDog2()
  })
  /* 导出 */
  return {
    addDog2,
    dog2List
  }
}

拆分求和的脚本：

/* eslint-disable prefer-const */
/* 引入 */
import { ref, onMounted,computed } from 'vue'
/* 导出 */
export default function () {
/* 数据 */
// eslint-disable-next-line prefer-const
let sum = ref(0)
let BigSum = computed(() => {
  return sum.value * 10
})
/* 方法 */
function add() {
  sum.value += 1
}
/* 生命周期 */
// 一打开就执行一次+1
onMounted(() => {
  add()
})
/* 导出 */
return {
  sum,
  add,
  BigSum
}
}